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openrisc: use generic strncpy_from_user

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As per commits 2922585b93 ("lib: Sparc's strncpy_from_user is generic
enough, move under lib/") and 92ae03f2ef ("x86: merge 32/64-bit
versions of 'strncpy_from_user()' and speed it up"), and corresponding
discussion on linux-arch.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jonas Bonn
2012-05-25 08:24:49 +02:00
committed by Linus Torvalds
parent ece78b7df7
commit 603d6637ae
3 changed files with 4 additions and 59 deletions
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10
arch/openrisc/include/asm/uaccess.h
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@@ -313,14 +313,10 @@ clear_user(void *addr, unsigned long size)
return size;
}
extern int __strncpy_from_user(char *dst, const char *src, long count);
#define user_addr_max() \
(segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
static inline long strncpy_from_user(char *dst, const char *src, long count)
{
if (access_ok(VERIFY_READ, src, 1))
return __strncpy_from_user(dst, src, count);
return -EFAULT;
}
extern long strncpy_from_user(char *dest, const char __user *src, long count);
/*
* Return the size of a string (including the ending 0)